The invention relates to new 8-vinyl- and 8-ethinylquinolonecarboxylic acids, process for their preparation, and antibacterial agents and feed additives containing them.
这项发明涉及新的8-乙烯基和8-乙炔基喹诺酮羧酸,其制备方法,以及含有它们的抗菌剂和饲料添加剂。
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作者:S. V. Basenko、M. G. Voronkov
DOI:10.1023/a:1022976622134
日期:——
Reaction of Hexamethyldisilazane with Cyclic Anhydrides of Organic Acids: A New Route to N-Trimethylsilylimides of Di- and Tetracarboxylic Acids
作者:S. V. Basenko、M. G. Voronkov
DOI:10.1023/b:rugc.0000031854.10831.a9
日期:2004.4
Cyclic anhydrides of di- and tetracarboxylic acids react with hexamethyldisilazane to give the corresponding N-trimethylsilylimides in 90-96% yields. However, cyclic anhydrides of succinic, 4-nitrophthalic. and tetrachlorophthalic acids react differently, giving acyclic trimethylsilyl esters of mono-N-trimethylsilylamides of these acids in 90-93% yields. The H-1 NMR, IR, and mass spectra of the compounds synthesized were studied.
SCHLIMME, E.;FRISTER, H.;RAEZKE, K. -P., NUCLEOSIDES AND NUCLEOTIDES, 7,(1988) N-6, C. 577-580
The invention relates to new quinolone- and naphthyridonecarboxylic acid derivatives which are substituted in the 7-position by a partly hydrogenated isoindolinyl ring, processes for their preparation and antibacterial agents and feed additives containing these compounds.